Loosely based on "The Philip experiment", a 1972 parapsychology experiment conducted in Toronto, Ontario to determine whether subjects can communicate with fictionalized ghosts through expectations of human will.
Filmed in 2012, it sat unreleased until 2014.
The scene with the Kirlian photography experiment, as seen through the lens of Brian's 16mm camera, was filmed by actor Sam Claflin himself, though not with the camera his character uses but with the contemporary professional Alexa camera of cinematographer Mátyás Erdély. Director John Pogue thought this would help achieve the raw look of found footage.
Sam Claffin trained in 70s filmmaking and shot some scenes.
The Script was heavily rewritten for budget reasons.